Comments and questions about the
APOD on the main view screen.
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MargaritaMc
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by MargaritaMc » Sun Mar 31, 2013 9:24 am
Sequences:
1. North-to-south down the western coast of North and South America.
2. North-to-south over Florida, the Bahamas and other Caribbean islands.
3. South-East Asia, approaching the Philippine Sea
4. Western Europe, from France through Italy, Greece, Turkey and the Middle East.
5. Aurora Australis, over the Indian Ocean, approaching Australia
6. Aurora Australis, over the Indian Ocean.
7. Aurora Australis, unknown location in the Southern Hemisphere.
(From the YouTube link in the Apod text)
I love this video, which I have on my Favourites list at YouTube and watch often! It continues to fascinate me that the flashes we see are lightening. The video of auroras - following the link in the text - is also stunning.
Margarita
"In those rare moments of total quiet with a dark sky, I again feel the awe that struck me as a child. The feeling is utterly overwhelming as my mind races out across the stars. I feel peaceful and serene."
— Dr Debra M. Elmegreen, Fellow of the AAAS
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K1NS
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by K1NS » Sun Mar 31, 2013 11:18 am
In the opening seqence, north to south along the western coast of the Americas, there is a large patch of green lights somewhere in Central America in perhaps Guatemala or El Salvador. I looked at this video several times and saw no other green lights anywhere else in the world.
What's up with those green lights?
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LocalColor
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by LocalColor » Sun Mar 31, 2013 6:06 pm
One of our favorite APOD videos!
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Borc
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by Borc » Sun Mar 31, 2013 8:17 pm
K1NS wrote:
What's up with those green lights?
WHY ARE THERE SO MANY THINGS I DO NOT KNOW?!
I saw this too. It makes me SO curious. Maybe something in the atmosphere in that region? I find that to be most likely. Maybe? Or maybe that city REALLY likes the color green.
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MargaritaMc
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by MargaritaMc » Sun Mar 31, 2013 8:58 pm
Borc wrote:K1NS wrote:
What's up with those green lights?
WHY ARE THERE SO MANY THINGS I DO NOT KNOW?!
I saw this too. It makes me SO curious. Maybe something in the atmosphere in that region? I find that to be most likely. Maybe? Or maybe that city REALLY likes the color green.
Oh, I do empathise! Every time I find out something new this opens the doors to new area of things that I hadn't up until then known that I didn't know
I hadn't noticed the green lights before - despite watching the video many times - and now I am also curious about what they might be!
We don't have many contributors today - all the knowledgeable regulars seem to be on vacation...
Margarita
"In those rare moments of total quiet with a dark sky, I again feel the awe that struck me as a child. The feeling is utterly overwhelming as my mind races out across the stars. I feel peaceful and serene."
— Dr Debra M. Elmegreen, Fellow of the AAAS
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MargaritaMc
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by MargaritaMc » Sun Mar 31, 2013 9:43 pm
Thank you!
On the thread you linked to, you said the green was 'airglow' - but I thought that that was more usually on the limb of the planet, like this:
http://www.universetoday.com/89688/what-is-airglow/
The green lights noticed on this video are more localised.
This is a night view of the centre of Quetzaltenango in Guatemala, showing Mercury-vapour lighting, that was mentioned in a post in the earlier use of this video as an Apod
http://asterisk.apod.com/viewtopic.php? ... 50#p171214
"In those rare moments of total quiet with a dark sky, I again feel the awe that struck me as a child. The feeling is utterly overwhelming as my mind races out across the stars. I feel peaceful and serene."
— Dr Debra M. Elmegreen, Fellow of the AAAS
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Boomer12k
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by Boomer12k » Sun Mar 31, 2013 9:50 pm
WoW! That was awesome. Very inspiring for us Earthbounders to get our ACT together. Flying through and above the Aurora was just incredible. There are really no words to describe it. Maybe GLORIOUS comes close. I think if it were slower it would be more Romantic....
Thanks for this awesome video!
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neufer
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by neufer » Sun Mar 31, 2013 9:51 pm
Art Neuendorffer
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bystander
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by bystander » Sun Mar 31, 2013 10:19 pm
K1NS wrote:In the opening seqence, north to south along the western coast of the Americas, there is a large patch of green lights somewhere in Central America in perhaps Guatemala or El Salvador. I looked at this video several times and saw no other green lights anywhere else in the world.
What's up with those green lights?
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk. — Garrison Keillor
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MargaritaMc
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by MargaritaMc » Sun Mar 31, 2013 10:36 pm
Thanks for posting the still from the video, bystander - that makes much more clear what the query is about.
M
"In those rare moments of total quiet with a dark sky, I again feel the awe that struck me as a child. The feeling is utterly overwhelming as my mind races out across the stars. I feel peaceful and serene."
— Dr Debra M. Elmegreen, Fellow of the AAAS
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owlice
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by owlice » Sun Mar 31, 2013 11:20 pm
Right; I knew your query was about the mercury-vapor lights. I didn't mean to imply that I'd posted the answer to your question! (Sorry about that!) I was just letting you know the answer appeared in the thread. (My response of "airglow" was to a different question.)
A closed mouth gathers no foot.
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neufer
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by neufer » Mon Apr 01, 2013 1:33 am
owlice wrote:
Right; I knew your query was about the mercury-vapor lights. I didn't mean to imply that I'd posted the answer to your question! (Sorry about that!) I was just letting you know the answer appeared in the thread. (My response of "airglow" was to a different question.)
Our expert at "Flying Over the Earth at Night"
![Exclamation :!:](./images/smilies/icon_exclaim.gif)
Art Neuendorffer
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owlice
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by owlice » Mon Apr 01, 2013 2:27 am
neufer wrote:
Our expert at "Flying Over the Earth at Night"
![Exclamation :!:](./images/smilies/icon_exclaim.gif)
The better to sneak up on you to sink my talons in!
![owl :owl:](./images/smilies/owl_24.png)
A closed mouth gathers no foot.
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Beyond
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by Beyond » Mon Apr 01, 2013 2:47 am
OUCH! I can almost feel his pain
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)
To find the Truth, you must go Beyond.
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Doug Martin
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by Doug Martin » Mon Apr 01, 2013 3:01 pm
iN A COUPLE OF SEQUENCES STARLIGHT DOTS ARE MOVING COUNTER TO THE SKY-SCAPE. WHAT'S THAT?
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geckzilla
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by geckzilla » Mon Apr 01, 2013 3:16 pm
Doug, if you zoom in reeeeally close and use a magnifying glass... well, to me, it looks like a capslock key.
(Artificial satellites.)
Just call me "geck" because "zilla" is like a last name.
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cielobuio
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by cielobuio » Thu Apr 04, 2013 6:26 am
The real problem, light pollution, is hidden behind the 'beauty' of this movie. This 'spectacle' of city lights for few astronauts on ISS prevents to billions of people to see the starry night from Earth.
Fabio Falchi
www.cielobuio.org
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Just Gene
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by Just Gene » Sun Apr 21, 2013 1:17 am
It's a nice video, but the explanation note author was either disingenuous or deceived by the video processing that went into it. "The ominous wave of approaching brightness at the end of each sequence is just the dawn of the sunlit half of Earth". That does take place in the first and last sequence, but the other "dawns" were faked, and the first and last were enhanced. Check out the original video of 9/27/2011 (the first sequence) to see what an unadulterated dawn looks like:
http://apod.nasa.gov/apod/ap110927.html
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geckzilla
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by geckzilla » Sun Apr 21, 2013 1:29 am
The blur and bloom is just a transition effect, Gene. I don't think any dawns were intended to be faked and I don't think the editor intended to deceive anyone (nor was he confused) with the statement. Just a little sloppy with the wording. It happens.
Just call me "geck" because "zilla" is like a last name.